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Saturday, 8 August 2015

Refrigeration and Air Conditioning - Fill in the Blanks

Refrigeration and Air Conditioning - Fill in the Blanks Points : mcqs, refrigeration and air conditioning, refrigeration and air conditioning fill in the blanks with answer key, refrigeration and air conditioning objective type question answers, absorption & refrigeration fill in the blanks, steam jet refrigeration system fill in the blanks, air washer fill in the blanks, screw compressor fill in the blanks, commercial air conditioning fill in the blanks, humidifiers and dehumidifier fill in the blanks, ice plants fill in the blanks,
  1. Air washer has two types.
  2. Air washer is primarily employed in industrial air conditioning applications.
  3. The unitary spray air washer requires considerable less space than a central station type.
  4. When wet bulb depression is zero, then relative humidity is equal to 100 percent:
  5. The central spray air washer requires considerable more space than unitary spray washer.
  6. Rotary screw compressor also belongs to the category of positive displacement compressor.
  7. In the centrifugal chiller the suction pipe is connected between cooler and the compressor.
  8. Oil separators are used on the discharge line to separate the oil from the hot gas.
  9. Hard water contains relatively large amount of solid impurities.
  10. Soft water has relatively small amount of solid impurities.
  11. In an air cooled package unit the wiring has to be interlocked so that the compressor will not run if the fan motor fails to run.
  12. Fan coil units are installed directly inside the conditioned spaces or in the ceiling plenum just above the conditioned space.
  13. The closed expansion tank is usually called a compression tank.
  14. Rotary pumps deliver a continuous liquid flow like the centrifugal type but operate at a much slower speed.
  15. Rotary pumps are positive displacement pumps.
  16. Centrifugal pumps operate at very high speeds.
  17. Centrifugal pumps are commonly used where large quantities of water or brine are to be delivered at moderate pressure.
  18. Reciprocating pumps are generally employed where the amount of liquid is moderate and where the delivery pressure is high.
  19. very high humidity in air causes dry skin and breathing dryness.
  20. If something spills in your refrigerator, clean it with hot soapy water.
  21. When storing food in the refrigerator, divide it into small portions. Put each portion in a shallow container.
  22. Bacteria, fungi, parasites, or viruses can contaminate your food.
  23. A thermometer is a device that measures temperature.

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